Believe it or not, the best time to go for Porbeagles in the bay is late october through mid December. They move in real close that time of year. I'm not sure how good things are in the spring.
Spring Cod at the dumping ground
great inshore cod
lots of structure around the dump or you can just look for the hard bottom there are some nice gravel beds out there.
Spring cod in Cape Cod Bay are a rare find these days. No doubt they are there but the doggies will kill ya. Just north of Sesuit harbor by the number one can is an area called Dennis Ledge. Full of rocks, boulders and ledge. Draggers can't work there and historically there was always a March codfish bite there. 10.5 fathoms of water. You'll know it by the irregular bottom. Might be worth a shot. Mackerel often show there in Spring as well.
The bay must be shoaling up there, Steve. Last season, there was only about 44-52 feet of water there and on my poor sonar, the bottom looked almost flat.
Bill
Bay & Beach Inspector
Everything I write is firmly substantiated by my own opinion.